Type.IsNested Свойство
Определение
Важно!
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Возвращает значение, позволяющее определить, представляет ли текущий объект Type тип, определение которого вложено в определение другого типа.
public:
property bool IsNested { bool get(); };
public bool IsNested { get; }
member this.IsNested : bool
Public ReadOnly Property IsNested As Boolean
Значение свойства
Значение true
, если объект Type вложен в другой тип; в противном случае — значение false
.
Примеры
В следующем примере создается внешний класс с рядом вложенных классов с различными типами видимости. Затем он извлекает значение ряда свойств, связанных с Type видимостью, для родительского типа и каждого из его вложенных типов.
using System;
// Create a class with a number of nested classes.
public class OuterClass
{
private class PrivateClass
{}
protected class ProtectedClass
{}
internal class InternalClass
{}
protected internal class ProtectedInternalClass
{}
public class PublicClass
{}
public static void Main()
{
// Create an array of Type objects for all the classes.
Type[] types = { typeof(OuterClass),
typeof(OuterClass.PublicClass),
typeof(OuterClass.PrivateClass),
typeof(OuterClass.ProtectedClass),
typeof(OuterClass.InternalClass),
typeof(OuterClass.ProtectedInternalClass) };
// Display the property values of each nested class.
foreach (var type in types) {
Console.WriteLine("\n{0} property values:", type.Name);
Console.WriteLine(" Public Class: {0}", type.IsPublic);
Console.WriteLine(" Not a Public Class: {0}", type.IsNotPublic);
Console.WriteLine(" Nested Class: {0}", type.IsNested);
Console.WriteLine(" Nested Private Class: {0}", type.IsNestedPrivate);
Console.WriteLine(" Nested Internal Class: {0}", type.IsNestedAssembly);
Console.WriteLine(" Nested Protected Class: {0}", type.IsNestedFamily);
Console.WriteLine(" Nested Family Or Assembly Class: {0}", type.IsNestedFamORAssem);
Console.WriteLine(" Nested Family And Assembly Class: {0}", type.IsNestedFamANDAssem);
Console.WriteLine(" Nested Public Class: {0}", type.IsNestedPublic);
}
}
}
// The example displays the following output:
// OuterClass property values:
// Public Class: True
// Not a Public Class: False
// Nested Class: False
// Nested Private Class: False
// Nested Internal Class: False
// Nested Protected Class: False
// Nested Family Or Assembly Class: False
// Nested Family And Assembly Class: False
// Nested Public Class: False
//
// PublicClass property values:
// Public Class: False
// Not a Public Class: False
// Nested Class: True
// Nested Private Class: False
// Nested Internal Class: False
// Nested Protected Class: False
// Nested Family Or Assembly Class: False
// Nested Family And Assembly Class: False
// Nested Public Class: True
//
// PrivateClass property values:
// Public Class: False
// Not a Public Class: False
// Nested Class: True
// Nested Private Class: True
// Nested Internal Class: False
// Nested Protected Class: False
// Nested Family Or Assembly Class: False
// Nested Family And Assembly Class: False
// Nested Public Class: False
//
// ProtectedClass property values:
// Public Class: False
// Not a Public Class: False
// Nested Class: True
// Nested Private Class: False
// Nested Internal Class: False
// Nested Protected Class: True
// Nested Family Or Assembly Class: False
// Nested Family And Assembly Class: False
// Nested Public Class: False
//
// InternalClass property values:
// Public Class: False
// Not a Public Class: False
// Nested Class: True
// Nested Private Class: False
// Nested Internal Class: True
// Nested Protected Class: False
// Nested Family Or Assembly Class: False
// Nested Family And Assembly Class: False
// Nested Public Class: False
//
// ProtectedInternalClass property values:
// Public Class: False
// Not a Public Class: False
// Nested Class: True
// Nested Private Class: False
// Nested Internal Class: False
// Nested Protected Class: False
// Nested Family Or Assembly Class: True
// Nested Family And Assembly Class: False
// Nested Public Class: False
' Create a Class with a number of nested Classes.
Public Class OuterClass
Private Class PrivateClass
End Class
Protected Class ProtectedClass
End Class
Friend Class InternalClass
End Class
Protected Friend Class ProtectedInternalClass
End Class
Public Class PublicClass
End Class
Public Shared Sub Main()
' Create an array of Type objects for all the Classes.
Dim types() As Type = { GetType(OuterClass),
GetType(OuterClass.PublicClass),
GetType(OuterClass.PrivateClass),
GetType(OuterClass.ProtectedClass),
GetType(OuterClass.InternalClass),
GetType(OuterClass.ProtectedInternalClass) }
' Display the property values of each nested Class.
For Each type In types
Console.WriteLine("{0} property values:", type.Name)
Console.WriteLine(" Public Class: {0}", type.IsPublic)
Console.WriteLine(" Not a Public Class: {0}", type.IsNotPublic)
Console.WriteLine(" Nested Class: {0}", type.IsNested)
Console.WriteLine(" Nested Private Class: {0}", type.IsNestedPrivate)
Console.WriteLine(" Nested Internal Class: {0}", type.IsNestedAssembly)
Console.WriteLine(" Nested Protected Class: {0}", type.IsNestedFamily)
Console.WriteLine(" Nested Family Or Assembly Class: {0}", type.IsNestedFamORAssem)
Console.WriteLine(" Nested Family And Assembly Class: {0}", type.IsNestedFamANDAssem)
Console.WriteLine(" Nested Public Class: {0}", type.IsNestedPublic)
Console.WriteLine()
Next
End Sub
End Class
' The example displays the following output:
' OuterClass property values:
' Public Class: True
' Not a Public Class: False
' Nested Class: False
' Nested Private Class: False
' Nested Internal Class: False
' Nested Protected Class: False
' Nested Family Or Assembly Class: False
' Nested Family And Assembly Class: False
' Nested Public Class: False
'
' PublicClass property values:
' Public Class: False
' Not a Public Class: False
' Nested Class: True
' Nested Private Class: False
' Nested Internal Class: False
' Nested Protected Class: False
' Nested Family Or Assembly Class: False
' Nested Family And Assembly Class: False
' Nested Public Class: True
'
' PrivateClass property values:
' Public Class: False
' Not a Public Class: False
' Nested Class: True
' Nested Private Class: True
' Nested Internal Class: False
' Nested Protected Class: False
' Nested Family Or Assembly Class: False
' Nested Family And Assembly Class: False
' Nested Public Class: False
'
' ProtectedClass property values:
' Public Class: False
' Not a Public Class: False
' Nested Class: True
' Nested Private Class: False
' Nested Internal Class: False
' Nested Protected Class: True
' Nested Family Or Assembly Class: False
' Nested Family And Assembly Class: False
' Nested Public Class: False
'
' InternalClass property values:
' Public Class: False
' Not a Public Class: False
' Nested Class: True
' Nested Private Class: False
' Nested Internal Class: True
' Nested Protected Class: False
' Nested Family Or Assembly Class: False
' Nested Family And Assembly Class: False
' Nested Public Class: False
'
' ProtectedInternalClass property values:
' Public Class: False
' Not a Public Class: False
' Nested Class: True
' Nested Private Class: False
' Nested Internal Class: False
' Nested Protected Class: False
' Nested Family Or Assembly Class: True
' Nested Family And Assembly Class: False
' Nested Public Class: False
Комментарии
Свойство IsNested возвращает для true
всех вложенных типов, независимо от видимости. Чтобы проверить вложенность и видимость одновременно, используйте связанные свойства IsNestedAssembly, IsNestedFamily, , IsNestedFamANDAssem, IsNestedFamORAssem, IsNestedPrivateили IsNestedPublic.
Примечание
Элемент VisibilityMask перечисления выбирает атрибуты видимости для типа.